JP3061045B1 - Method for restoring contract information of mobile communication system - Google Patents

Abstract

A method for easily recovering contract information is provided. SOLUTION: In a location register storing user contract information (subscriber information, mobile device information) of a mobile communication system, if the communication of the contract information becomes impossible due to a failure of the location register, the contract information is restored. In the method of restoring the contract information, the other location registers store the contract information so as not to hinder the connection of the incoming and outgoing calls, and have data indicating the storage location register, Contract information can be easily restored. The location register and other location registers are the home location register 1 or the visited location registers 2a, 2b, and the failure includes a hardware failure or a software failure of the location register.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for restoring contract information in a mobile communication system, and more particularly to a method for restoring contract information that can easily restore contract information.

[0002]

2. Description of the Related Art In a mobile communication system, the system restarts when subscriber information and mobile device information are destroyed, inaccessible, or lost due to a failure in a location register, and is set by a mobile device (user) when started from a storage medium. The temporary information of the added service that has been provided is lost, and the additional service from the mobile device (user) cannot be performed.

[0003]

Therefore, the conventional restoration method has a problem in that the worst obstacle is the re-entry of the service order, requiring a lot of time for restoration.

[0004] In addition, there is a problem that a considerable amount of time is required for recovery by downloading from an external storage medium.

Further, there is a problem that the outgoing / incoming connection of the mobile device (user) is interrupted during that time.

Accordingly, an object of the present invention is to provide a method for restoring contract information that enables easy restoration of contract information of a mobile communication system in order to solve the above problem.

[0007]

In order to achieve the above object, a method for restoring contract information according to the present invention provides a method for contracting a location register in a location register storing user contract information of a mobile communication system due to a failure of the location register. In a contract information recovery method for recovering contract information when communication of information is disabled, the location register may
The home memory of the business operator (user) subscribed to
Home location register.
Communication of contract information is disabled
In the case of Tsu, other location register so as not to interfere with the incoming and outgoing connection the contract information in advance to accumulate the contract information,
In addition, the contract information can be easily restored by having the data indicating the storage destination location register.

[0008] The contract information includes subscriber information of the mobile device,
It is preferably mobile device information.

[0009]

[0010] Still further, it is preferable that the other location register is a location register in which a mobile station located in an area which can be controlled by the local exchange performs outgoing / incoming connection.

The failure includes a hardware failure of the location register, which makes reading and writing of the contract information impossible or inaccessible.

Further, the fault includes a software fault in the location register, which destroys the contract information.

As described above, in the present invention, in particular,
In a home location register (HLR) and a location register (VLR) in which certain subscriber information and mobile device information are stored, one location register reads the subscriber information and mobile device information due to a hardware failure.
When writing becomes impossible and access is disabled, or when subscriber information and mobile device information are destroyed due to software failure, other location registers do not interfere with outgoing / incoming connections to restore subscriber information and mobile device information. Since the subscriber information and the mobile device information are stored, the subscriber information and the mobile device information can be easily restored if the data indicating the storage location register is provided.

[0014]

Next, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic diagram showing the configuration of a mobile communication system according to the contract information recovery method of the present invention. In the mobile communication system, the home location register 1, the visited exchanges 4a and 4b, and the visited location register 2
a and 2b are connected via a common line signal network 6. The home location register 1 serves as a home memory of a business operator to which the mobile devices (users) 9a and 9b have subscribed, and stores subscriber information and mobile device information of the mobile devices 9a and 9b. Visited exchanges 4a and 4b are mobile units 9
Reference numerals a and 9b denote mobile networks that have moved and have subscribed.
The visiting location registers 2a and 2b store the visiting exchange 4
Mobile station 9 located in an area that can be controlled by a and 4b
When a and 9b make outgoing and incoming connections, the subscriber information and mobile device information of the mobile devices 9a and 9b are stored. That is, the mobile location 9a in the area 8a controlled by the local exchange 4a transmits and accumulates subscriber information and mobile information from the home location register 1a at the time of outgoing / incoming connection. . Similarly, in the location register 2b, subscriber information and mobile device information are transmitted from the home location register 1 and stored in the area 8b controlled by the location switching system 4b when the mobile device 9b makes and receives a call. . The serving exchange 4a is connected to the base station 7a,
7b, 7c, the visited exchange 4b is connected to the base station 7d,
7e, 7f. The area includes an area 8a that can be controlled by the serving switch 4a and an area 8b that can be controlled by the serving switch 4b. The mobile station 9a is located in the area 8a, and the mobile station 9b is located in the area 8b. .

Next, an embodiment of the contract information recovery method of the present invention will be described.

FIG. 2 is a flowchart showing an embodiment of the contract information recovery method according to the present invention. For example, if the home location register 1 becomes inaccessible or destroyed due to a hardware failure or a software failure, the communication is interrupted (2- (2)).
A), it is necessary to quickly restore subscriber information and mobile device information. As a recovery method, the home location register 1 stores the subscriber information of the mobile device 9a and the visited location register 2a storing the mobile device information, and the home location register 1 stores the subscriber information of the mobile device 9b and the visited location storing the mobile device information. If the home location register 1 has the data of the location number indicating the register 2b, the home location register 1 sends the subscriber information and the mobile device information to the visited location registers 2a and 2b via the common line signaling network 6. A request signal is transmitted (2-B). The visiting location registers 2a and 2b are:
When the request signal is received, it is searched whether or not it has the requested subscriber information and mobile unit information (2-C). If it does, the subscriber number and mobile unit number in the request signal are used as index information as the subscriber information. If the mobile device information is transmitted to the request source (2-
D) The subscriber information and mobile station information in the home location register 1 can be easily restored (2-E). If the visited location registers 2a and 2b do not have the subscriber information and the mobile device information, the information request is made to another visited location register. This information request may be made to all the visited location registers at once, or the information request from the beginning may be restored more quickly if all the visited location registers have the information of the other location registers. Can be.

As described above, according to the present invention, the subscriber information and the mobile station information become inaccessible due to the failure of the location register, and even if the subscriber information and the mobile device information are destroyed, the subscriber information and the mobile station information do not interfere with the outgoing / incoming connection. Since the mobile device information is stored, if there is recovery information indicating another stored location register, the subscriber information and the subscriber information from the other location register are stored based on the recovery information.
If the mobile station information is transmitted to the failed location register, it can be easily restored.

[0019]

Next, an embodiment of the present invention will be described with reference to the drawings.

First, a first embodiment of the contract information restoring method of the present invention will be described in detail with reference to FIGS. First, the home location register 1 becomes unable to communicate (2-A), and the area 8 that can be controlled by the foreign exchange 4a.
When the mobile station 9a located in the mobile station 9a makes an outgoing / incoming call connection, the subscriber information of the mobile station 9a and the home location register 1 storing the mobile station information join the mobile station 9a to the located location register 2a. The user information and the mobile device information are transmitted and stored (2-B, 2-C, 2-D). In addition, the home location register 1 becomes unable to communicate (2-
A), when the mobile station 9b located in the area 8b which can be controlled by the exchange 4b establishes a call connection, the home location register 1 storing the subscriber information of the mobile station 9b and the mobile station information stores the information. The subscriber information and the mobile station information of the mobile station 9b are transmitted and stored in the area location register 2b (2-B, 2-C, 2-D). In this way, information recovery in the home location register 1 is performed (2-E).

Next, FIG. 3 is a diagram showing data necessary for restoring subscriber information and mobile station information. The recovery reference data 12 has data for the mobile station stored in the location register. Each mobile device has a recovery display 13 and location register position information 14. Recovery display 1
In 3, when the location register becomes a hardware failure or a software failure and it becomes necessary to recover the subscriber information and the mobile device information, the recovery display 13 is set to the recovery necessity.
Normally, no recovery is required. The location register position information 14 indicates a location register number stored for restoring subscriber information and mobile device information. For example, if the mobile device 9b moves to the area 8b to make a call connection, the location register 2
The location register number of b is set. As described above, when the mobile device moves between the areas, the location register position information 14 is rewritten.

FIG. 4 is a diagram showing a configuration of a table of subscriber information and mobile station information. This table has subscriber information and mobile device information for mobile devices stored in the location register. The subscriber information table 15 shows the subscriber information of all mobile units. Among them, the subscriber information 16 for one mobile station is shown. The mobile device information table 17 shows mobile device information of all mobile devices. Mobile device information 1 for one mobile device
8 is shown. Since it is necessary to have a correspondence between the subscriber information and the mobile device information, a link is set from the subscriber information to the mobile device information.

Next, a first embodiment of the contract information of the present invention will be specifically described with reference to FIGS.

In FIG. 1, of the home location register 1 and the located location registers 2a and 2b, the home location register 1 becomes an obstacle and the mobile station 9a
When it becomes necessary to restore subscriber information and mobile device information,
The restoration is performed based on the contents of the restoration reference data 12 in FIG. The restoration reference data is indexed by the subscriber number of the mobile station 9a, and the restoration display 13 indicates that restoration is required. In the location register position information 14, a location register number indicating the located location register 2a is set. The home location register 1 transmits a signal requesting the subscriber information and the mobile station information to the located location register 2a. The received location register 2a stores the subscriber information table 1 with the subscriber number set in the received signal.
5 and the mobile device information table are indexed, and the subscriber information 1
6. The mobile station information 18 is extracted and transmitted to the home location register 1. When it is necessary to restore the subscriber information of the mobile station 9b and the mobile station information, the restoration reference data is indexed by the subscriber number of the mobile station 9b, and the restoration indication 1 is displayed.
In 3, a recovery point is set. In the location register position information 14, a location register number indicating the located location register 2b is set. Home location register 1 is located location register 2
b, a signal required for subscriber information and mobile station information is transmitted. The received location register 2b stores the subscriber information table 1 with the subscriber number set in the received signal.
5 and the mobile device information table are indexed, and the subscriber information 1
6. The mobile station information 18 is extracted and transmitted to the home location register 1. Recovery reference data 12 shown in FIG.
Indicates that the recovery indicator 13 indicates that no recovery is required. For example, when the mobile device 9b is located in the area 8a, the subscriber information and the mobile device information of the mobile device 9b are stored in the subscriber information table 15 and the mobile device information table 17 of the located location register 2a. ing. Location register position information 1 of home location register 1 at that time
Reference numeral 4 denotes a location register number of the located location register 2a. Thereafter, when the mobile device 9b moves to the area 8b and performs outgoing / incoming / outgoing connection, the visited exchange 4
b notifies the home location register 1 that the mobile device 9b has moved to the area 8b. The home location register 1 transmits the subscriber information and the mobile station information of the mobile station 9b to the visited location register 2b, and the location register position information 14 is transmitted to the visited location register 2b.
Is set.

The mobile station 9a shown in FIG.
Is located in the area 8a which can be controlled by the user, when a call connection is made, the subscriber information of the mobile device 9a and the home location register 1 storing the mobile device information are transferred from the home location register 1 to the located location register 2a. Information and mobile device information are transmitted and stored. The mobile station 9b is located in an area 8b that can be controlled by the exchange 4b, and when an outgoing / incoming call is established, the home location register 1 storing the subscriber information and the mobile station information of the mobile station 9b. The subscriber information and the mobile device information of the mobile device 9b are transmitted and stored in the in-location register 2b. Furthermore, the restoration reference data 12 of the home location register 1 is not required to restore the restoration display 13 of the position indexed by the subscriber number of the mobile device 9a, and the location register position information 14 is set by the location register number of the located location register 2a. Have been. The restoration display 13 of the position indexed by the subscriber number of the mobile station 9b is unnecessary, and the location register position information 14 is set to the location register number of the located location register 2b. In this state, the home location register 1 becomes an obstacle and the mobile station 9a
When it becomes necessary to restore the subscriber information and the mobile device information, the restoration is performed based on the contents of the restoration reference data 12 in FIG. The restoration reference data 12 is indexed by the subscriber number of the mobile station 9a, and restoration is required in the restoration display 13. The location register position information 14 is the location register 2
A location register number indicating "a" is set.
The home location register 1 transmits a signal requesting subscriber information and mobile station information to the located location register 2a via the common channel signal network 6. The received location register 2a indexes the subscriber information table 15 and the mobile device information table 17 by using the subscriber number set in the received signal, and obtains the subscriber information 16 and the mobile device information 18.
Then, the subscriber information and the mobile station information are set in the response signal and transmitted to the home location register 1 to restore the subscriber information table 15 and the mobile station information table.
Here, when it becomes necessary to restore the subscriber information and the mobile device information of the mobile device 9b, the recovery is performed based on the content of the recovery reference data 12 in FIG. The restoration reference data 12 is indexed by the subscriber number of the mobile device 9b, and the restoration display 13 indicates that restoration is required. In the location register position information 14, a location register number indicating the located location register 2b is set. Home location register 1
Transmits a signal requesting the subscriber information and the mobile station information to the located location register 2b via the common channel signal network 6. The received location register 2b indexes the subscriber information table 15 and the mobile device information table 17 with the subscriber number set in the received signal, extracts the subscriber information 16 and the mobile device information 18, and outputs a response signal. The subscriber information and the mobile device information are set and transmitted to the home location register 1 to restore the subscriber information table 15 and the mobile device information table. As described above, the subscriber information 16 and the mobile device information 18 can be restored by the located location register 2b.

Next, another embodiment of the present invention will be described in detail.

First, a second embodiment of the present invention will be described. The basic configuration is the same as that of the first embodiment shown in FIG. 1, but in the second embodiment, regular subscription between the home location register 1 and the visited location registers 2a and 2b is performed. This recovery method is used when user information and mobile device information are to be collated. Here, the necessity of regular verification is based on changes by mobile device operation (subscriber operation of terminal),
The subscriber information and the mobile device information of the location register are changed in real time by the change by the operation of the business operator and the change by the mobile device moving. Therefore, the information is inconsistent between the location registers even temporarily.

Next, a third embodiment of the present invention will be described. In the above-described embodiment, the subscriber information and the mobile device information to be restored are stored in the corresponding restoration indication 1 of the restoration reference data 12.
By setting the need for recovery in 3, recovery was possible. Similarly, restoration reference data 12 is calculated based on the number of subscriber information and the number of mobile stations, which are periodically checked against a cycle time that does not apply a load to each device and line.
If the restoration required is set in the restoration display of, the collation can be performed. In the third embodiment, when it is desired to perform collation between the home location register 1 and the located location registers 2a and 2b, if the location register that has made the collation request is the home location register 1, the restoration of the home location register 1 is referred to. Referring to the location register position information 14 of the data 12, the located location register 2
If restoration is required in the restoration display 13 in which the location register numbers a and 2b are set, the subscriber information and the mobile device information to be collated are stored in the location registers 2a and 2 located in the area.
b to the home location register 1. The home location register 1 compares the self-subscriber information, the mobile device information and the transmission information.

Next, a fourth embodiment of the present invention will be described. In the third embodiment described above, the embodiment in which the home location register 1 is to be restored has been described. However, when the in-location registers 2a and 2b are to be restored, the same restoration method can be used.

[0030]

As described above, according to the present invention, subscriber information and mobile unit information cannot be read and written due to a hardware failure, resulting in an inaccessible state, or subscriber information and mobile unit information due to a software failure. When the communication is broken, the communication is interrupted, but the communication interruption can be quickly restored.

Further, the subscriber information and the mobile station information in the home location register are changed in real time.
There is an effect that this restoration method can be used when it is desired to change the visited location register in real time.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a configuration of a mobile communication system according to an embodiment of the present invention.

FIG. 2 is a flowchart showing an embodiment of a restoration method according to the present invention.

FIG. 3 is a diagram illustrating an example of restoration reference data.

FIG. 4 is a diagram showing an example of a table of subscriber information and mobile device information.

[Explanation of symbols]

 Reference Signs List 1 home location register 2a, 2b serving location register 7a-7f base station 8a, 8b area 9a, 9b mobile device 13 restoration display 14 location register position information 15 subscriber information table 16 subscriber information 17 mobile device position information table 18 mobile Machine information

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) H04B 7/24-7/26 H04M 3/00 H04M 3/08-3/58 H04M 7/00-7 / 16 H04Q 1/20-1/26 H04Q 3/54-3/56 H04Q 7/06-7/38

Claims (2)

(57) [Claims] 1. A contract register for restoring contract information in a location register storing user contract information of a mobile communication system when communication of the contract information is disabled due to a failure of the location register. The method wherein the location register is subscribed to by a mobile station (user).
Home location to be the home memory of the contracted business
The home location register.
Communication of the contract information becomes impossible due to a data failure
In the other location register to store the contract information so that the contract information does not interfere with outgoing and incoming connections ,
The contract information can be easily restored by having the data indicating the storage location register. Wherein said other location registers, and wherein the mobile unit area MSC is located in the area that can be controlled is visited location register for incoming and outgoing connection, according to claim 1 How to restore contract information.